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Gold Prospecting
Hard Rock Gold Prospecting
Can you help? Blue / grey shale / slate with pyrite / sulfides
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<blockquote data-quote="Parks" data-source="post: 215256" data-attributes="member: 6315"><p>It was all clay in its day. As it was deposited in thin layers upon layers of thin layers. You can see a small line just under the pyrites showing something happened at this time line and a change of clay happened. It couldn't have been a fire as the pyrites shows plants where only just evolving. The layers have a constant thickness, so may have a cycle, possibly yearly. After drying out to slate it was subjected to pressure causing the crack below the pyrite, the one below that which now contains quarts and the one below that on the bottom now containing quartz.</p></blockquote><p></p>
[QUOTE="Parks, post: 215256, member: 6315"] It was all clay in its day. As it was deposited in thin layers upon layers of thin layers. You can see a small line just under the pyrites showing something happened at this time line and a change of clay happened. It couldn't have been a fire as the pyrites shows plants where only just evolving. The layers have a constant thickness, so may have a cycle, possibly yearly. After drying out to slate it was subjected to pressure causing the crack below the pyrite, the one below that which now contains quarts and the one below that on the bottom now containing quartz. [/QUOTE]
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Gold Prospecting
Hard Rock Gold Prospecting
Can you help? Blue / grey shale / slate with pyrite / sulfides
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